johnson



(No mda'el.)

APPARATUS FOR PRE No. 253,061. Patented Jan. 31,1882.

. 2 SheetsSheet 1. A. F. & F. B. JOHNSON.

PARING AND TRANSMITTING SB MESSAGES.

GRET TELEGRAPHIG [IIIIIIIHIIIMIIIJIII (No Model.) 2 Sheets-Sheet 2.

A. F. & F. B. JOHNSON. APPARATUS FOR PREPARING AND TRANSMITTING SECRET TELEGRAPHIG MESSAGES.

No. 253,061. Patented Jan. 31,1882.

UNITED STATES ALBERT- r. J HNsON AND FRANK n.

PATENT OFFICE.

JOHNSON, or BROOKLYN, NEW YORK,

ASSIGrNORS TO-THE JOHNSON ldAN'UFAOTURl-NG COMPANY, OF SAME PLACE.

APPARATUS FOR PREPARlNG Ail D TRANSMITTING SECRET TELEGRAPHIC MESSAGES.

SPECIFICATION forming part Of Letters Application filed Aug I for p'reparingand transmitting secret tele graphicdispatches,which weemploy in our improved system of transmitting secret messages by electromagnetic instruments; set forth in the specification marked A, filed simultaneous- 2c ly herewith.

' As set forth in said specification A, we ordinarily employ twoseparate machines or instruments in the preparation and transmission of the messages, (in connection with a receiv- 2 5 ing-instrumentQ upon the first of which "the person who wishes to send a message prepares the message himself by means of indentations made upon a strip of paper, which is then handed to the person in charge of the transmitting-machine, who forwards it to the station at which it is to be delivered; and this invention consists incertain novel constructions and combinations of m chanism, hereinafter particularly described, whereby the said 5 messages ane'prepared fortransrnission.

In the accompanying drawings, Figure 1' represents a plan view of the-machine for impressing the message on the strip; Fig. 2, a side elevation of the same; Fig. 3, an end o'view, and Fig. 4 a sectional elevation, of part of the saidmachine; Fig. 5, a plan view of the instrument for'transmitting the prepared message;. Fig. 6, a side elevation of the same. Similar letters of reference indicate the same 5 parts in all the several figures.

1 represents the: frame of the preparing-machine, which may be of suitable form and dimensions for holding the working p'arts. Y P' represents a case or cover, in which the machine is inclosed, provided with an opening at-its front end to receive the strip G as itpasses from the spool H, another opening at Patent No. 253,061, dated January 31, 1882.

list is, 1881. {X0 model.)

its rear end, through which the strip passes after it has been indented. and another small opening at the top, through which'is seen each letteror character on the letter-wheel a as it comes under the same; and immediately over this last-mentioned opening is an index, a which is secured to the top of the case. The letter-wheel a is secured upon a shaft, I, which has hearings in the sides of the frame, and'is rotated by a crank, a. On its periphery are marked the letters of the alphabet in regular the ordinary punct'uation-characters, which in all are forty in number, an'd'are counterparts of chine, one side of the said wheel a is secured upon thesame shaft 2. wheel, firhaving forty teeth, each of said teeth coinciding with one of the letters or characters on the wheel a.

1) b b b representa series of four upright pivoted to a series of four reciprocating arms, cc 6 c, which are fitted upon a horizontal transverse shaft or bar, J, and the lower ends of which, whendepressed, make indentations neath them over a plate,e, secured to the frame a transverse shaft, K, one end of which said lever is pivoted to the rear end of the arm 0 and its other end is provided with a click or pallet, a, which falls between the teeth of the wheel 1', so that as each tooth on the said wheel passes the said click, in bringing the desired letter or charactertinto position under the index a it operates the lever 01 and arm '0 and thereby causesthe rod-ifi'to make one of the indentations g on the strip G, which said indentations, when passing through the transmitting-instrument, cause a corresponding rotation of the type-wheel on the receiving-machine. Y

d isa lever, also fitted upon the shaft K, the front end of which is pivoted to the rear end of the arm o and the rear or outer end of which is depressed by hand whenever the required character on the letter-wheel has been brought under the index a by rotating the letter-wheel. and this lever 11 operates the arm 0 and causes the rod b to descend and make one of the in- .rods' or pistons, the upper ends of which are order, together with numerals up to ten, and

those on the type-wheel in the receiving-nia- (mentioned in specification A;) and at on the strip of paper G, which passes underof the machine. The rod b is depressed by means of a bent lever, d fitted to swing upon Ident'ations g, which said'indentationsfln pas'smitting-instrument, cause the longitudinal ing through the transmitting-machine, operate movement of the strip in the receiving-mato throw up the platen or impressing-roll inchine while the message isbeing transmitted. the receiving-machine and print that letter on The devices for moving the strip longitudinally 5 the strip therein. At the'outer end of this lein the-reeeiv ing-machine at the end of the mesver d is an upright rod, which passes through sa'ge consist of a toothed wheel, f fixed up an opening at the top of the cover P, and is .on the-shaft K, which is rotated by hand one provided with a knob-for convenience in opercomplete revolution by means of a crank or a ating it. handvw'heel, 1, outside of the case. This wheel to The red 1) makes indentations g on the strip,- f operates a pawl or clickat the end of a le- 5 letterof the nextword.

which, in passing through the transmitting-inver, d, which latter is secured to the rear end strument, operate the mechanism which causes of the arm a, so that as the teeth pass under the transverse movement of the type-wheel in the said pawl the latter is lifted by each tooth, 8o the receiving-machine, and it isdepressed by and thereby depresses the rod 1), causing the. 1 r5 a lever, d, fitted upon -the.'shaft K, the front latter to .make indentations 9 corresponding end of which is pivoted to the arm a, and its in number with the number of teeth that have rear end provided, with an upright r0d,-which passed under said pawl.' After the address has passes through the top of the case P, and is been indented in the same manneras the mess 5 provided with a knob for convenience in opersage the wheel f is again turned one revolu- 2o atin'g it. This lever dis depressed at each de- 7 tion, which causes the rod]; to make indentapression of the lever d by means of a pin, h, tions for the purpose of feeding the stripin the near its outer end, which passes underneath a receiving-machine forward longitudinally to similar pin secured immediatelyover the same receive anothermessage. 31 is an upright rod :on the lever d, so that whenever one of the iupivoted on the bar y, against the lower end of 2 5 dentatio'ns g is made one of the indentations which the end of the pawl t rests, and which gt also'is made; but this lever d has also an prevents the latter from taking more than one independent'movement and is-depressed sep- 'toothof, the wheel f at each stroke. When arately (by hand) at theend'of each word, so theseveral'levei's which operate the rods b b that an additional indentation, g, is made, 'one' 12 b are at rest the latter are raised frd'm the 30 of them being to move the type-wheel in the paper by means ota spiral'spring, with which receiving-machine transversely to printathe each is -provided. j

last letter of the word, and the other to simi- ,L is'a frame, which is pivoted at its ends on larly move said wheel, so asto leave a space the bar or sha'ft J ,and is provided'withadown- I0 between the 'last letter-printed and the first wardly-projecting arm, 'u at'each end. The

upper part of thisframe extends above and The rod b makes indentations which, in passacross the rear ends of the arms 12 c c- 0 and ingthrongh the transmitting-maohine, operate a series ot'set-screws, j, pass throughthe same, themechanismin the receiving-machine, which so that, their lower ends each rest upon the feeds the strip therein longitudinally. It is op rear end of one of the arms co 0, 0 so that 0 erated by two separate mechanisms-one for whenever the'rear eiid of one of saidarms ismaking an indentation, g, to move said's'trip raised and its front end correspondingly d'e-, longitudinally the space between transverse pressed the upper part of the'frame L is also lines ct printing thereon whenever one of said raised and the lower ends of its arms a are I 1 lines has been completerhand the othertomake thrown back, and a dog, 0, pivoted to. each 5 a number of-indentations at. the end of the pushes the paper Gr forward over a roll, u, as I message to feed the said striplongitudinally :1 shown in Fig.4. By these means the strip Gr sntficient space to receive the address thereis fed forward each time an indentation is upon. The devices'for efi'ecting the former are made thereon The lower ends of the set- 5 as follows: f is a ratchet wheel having a nu mscrews 1 j are kept in contact with the rear ends 50 her of teeth equal to thenumberof letter-spaces 'ot the arms 0 c c c by'ajspring, 1?, which is on each transverse line of printing on the strip; attached to the frame L at one end and to the in the receiving-machine,which is fittedon the machine-frameP at its other end. A second shaft J and is free to rotate thereon. ;i isa dog or-Kdrag, 20, which is pivoted on the bar fpawl pivoted to one end of a lever, i, which J and kept-with itsglowerend in contact w'ith' 5 5 is pivoted at its other end upon the shaft I thestrip Gas itpasses over the mild by means. and has a slot, it, through which passesapiii; of a spring, y,-holds the said strip while the fixed on the side of the lever d, so that each dogs w are retracted. From this it willbe untime the lever d is depressed the said pawl derstood'that the-indentations are made on-the I 5 moves the wheel f the space of one tooth. strip'G as it passes over theplate e, and that 60 .When the lever d has thus been depressed a every time an indentation is made the strip is snficient Ill1lllbI.Of times to cansethe wheel lfedforward. a f to make a complete revolution, a pin, f, The throwot' the rods b7) 1) b is determined fixedon its side, near its periphery, lifts a leby means of rods d fixed .on the under side of 3 vcr, d secured to the, rear end of the arm-c, the leversd and d,- the lower ends of which- '65 and thereby causes the rod I; to make one of saith rods, .when the saidlevers are struck,-

the indentations g on the strip G, whichsa'id coming in oontactwith the heads-of adjustingindentations, in passing through the transscrews fixed onatransverse bar,d ,atthe rear of the frame. The strip G,having the mes. sage indented upon it, as above described, is then ready to be passed through the transmitting-instrument. (Shown on Sheet No. 2.) For this purpose it is first placed upon some suitable device connected with the latter which will secure a proper tension on the strip-as, for instance, upon a reel, E

It represents a "drum, over which the indented strip' is to be passed, havihg bearings in the upright posts 1?, and is turned by a crank in the direction indicated by thearrow. Its periphery is provided with 'a roughened or friction surface, so that the paper shall not slide thereon. The strip is passed overthis drum with its indented surface next to the surface of the latter, so that the indentations form bosses or projections from the surface which is uppermost as it passes over the drum.

1 and l are friction-rollers, by means of V which the paper is held snugly on the drum,

. from the platform;

- from their upper ends equal to about one-fourth of their length, so that their Tower ends will and It a curved metal strip to the drum.

l l l 1 represent a series of four levers, which are fitted upon a transverse bar, 11, to swing vertically, and immediately under the extreme upper (and shorter) end of each is provided a pin or projection, under which said pins the bosses g-g' g g respectively pass as the strip G is drawn over the drum, and raise the ends of the levers under which they pass.

The otheeendsotthese levers lv 1' l? Paresus-fl pended by spiral springs it from ,atransverse- 'bar', ]g*, directly'over'twos'eries of posts'fn m .m m and n n n n, respectively, so that whenever the upper end of one of the levers is raised by the passage of oueof the bosses under it its lower and longer end makes contact with one of each series of the said posts. The posts m m m m are each insulated from the platform upon which they are secured, and,

from each other, and each is connected by a line-wire with one of the magnets on thereceivingrnachine at the receiving-station, andthe posts n n n n are insulated from the platform upon which they are secured,but are con- In the drawings the levers l l l l are represented as being pivoted at a point distant have a vertical sweep equal to about four times the height of the bosses, which will be suflicient to efl'ectually break andelosethe circuits as the levers are raised or lowered. The tension of the springs h isto be suflicient to sus- 5- tain the weight ofthe lower and longer ends of the levers when they are at rest, so as to keep them from contact with the posts, and the pins on their upper ends in contact with the paper.

plate for guiding the The strip Gis passed over the drum k, as shown in Fig. 6, and as each of the bosses 9 passes under the lever I it causes the latter to make contact with the posts m and n, and the post at beingconnected by a wire,,4, with the magnet on the receiving-machine that brings up the platen or impressing-roll, the said magnet is thereby brought into circuit. I As each boss 7 5 9 passes under the lever L the latter makes contact with the posts m and W, and thereby brings iuto circuit the magnet which operates the mechanism that rotates the type-aw heel'on the receiving-machine, the said post m being whichefi'ects the transverse movement of the type-wheel on the'receiving-machine, the said post m being connected with said magnet by a Wire, 2, and as the bosses 9 pass under, the

lever l the latter makes contact with the posts machine which operates the longitudinal feed of the strip therein, the said magnet is thereby brought into circuit.

m and n, and the said post at being connected go by wire 1 with the magnet on the receiving- Fromthe above description it will be underi-j stood that the message is impressed upon the strip .G in a form which is unintelligible tc any. one who may examine"it,"'and that the said'indenta'tiou s, although in themselves without significance or meaning, I are placed in "slit 3h relation to each other that when passed through the transmitting mechanism they operate the receiving-machine in such manner as to cause it to reproduce the message in priiited form. "i r We do not in this application claim the transmitting mechanism shown in Figs. 5 and 6, but insert "the same and the description thereof merely to show the purpose of the indent-a- -tions,- and the manner in which they are made to operate in our system of telegraphing.

What we claim as our invent-ion is p 1. In combination with the letter wheelc and ratchet-wheel f, the levers d d d d d, pivoted armscc c o punching-rods b b b b. and toothed wheels?" and f constructed and operated. as described, the whole being construct ed and arranged to operate substantially as described, for the'purpose of making indentations or bosses on the strip G, which indicate the subject and import of the message, as set forth. y

2. In combination with .the pivoted arms a c c 0 operated as described the frame L, provided with the set-screws yyy, and arms n carrying the dogs to, roller 41., dog to, and springs y and 3 as shown and described, for the purpose of feeding forward the strip G.

ALBERT r. JOHNSON. FRANKVB. JOHNSON.

Witnesses:

JOHN S. THORNTON J. OGDEN smrrn. 

